Home Energy International in Holland has created the Energy Ball, an egg beater shaped wind turbine. Moving parallel to the wind, it generates less noise than the wind itself. It works at speeds as slow 4.5 mph while the average turbine needs about twice that to turn. The Energy Balls are sold in 1 and 2 meter versions, for $3,500 and $7,000 (not including installation,) but we would much rather see these dotting the landscape than more nuclear power plants.